Hi,there! I want to study Quantum Field Theory but I don't know what book to use! I have a rather good background in quantum mechanics and electrodynamics, and I probably can gain access on the following books: Brown L.S. : "Quantum Field Theory" Peskin and Schroeder : "Introduction to Quantum Field Theory" Ben Simons : "Quantum Field Theory" Weinberg S. : "The Quantum Theory Of Fields" Vol 1,2,3 . If you have any idea or suggestion which to use (not necessary from the above list) please tell me! Thank You for your time and your help!